From 16e5859cd24d25913134725d97bf5cd23c2e06d2 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Tue, 9 Feb 2010 00:28:57 +0000
Subject: [PATCH] Allow free space map vacuuming to be interrupted.

---
 src/backend/storage/freespace/freespace.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/backend/storage/freespace/freespace.c b/src/backend/storage/freespace/freespace.c
index 2311bcae56..fb7bd7d83f 100644
--- a/src/backend/storage/freespace/freespace.c
+++ b/src/backend/storage/freespace/freespace.c
@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/storage/freespace/freespace.c,v 1.74 2010/01/02 16:57:51 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/storage/freespace/freespace.c,v 1.75 2010/02/09 00:28:57 tgl Exp $
  *
  *
  * NOTES:
@@ -749,6 +749,8 @@ fsm_vacuum_page(Relation rel, FSMAddress addr, bool *eof_p)
 		{
 			int			child_avail;
 
+			CHECK_FOR_INTERRUPTS();
+
 			/* After we hit end-of-file, just clear the rest of the slots */
 			if (!eof)
 				child_avail = fsm_vacuum_page(rel, fsm_get_child(addr, slot), &eof);